Whether or not you can do sports after the leg soreness, mainly depends on the cause of the soreness and the degree of the cause, if the sudden movement of lactic acid buildup caused by, then you can also do a moderate amount of exercise, but can not be strenuous; if for the local muscle pulling injuries caused by, is not to continue to do sports. 1. If the leg soreness is not intense, no obvious local swelling and pain, generally more for the accumulation of lactic acid, then you can do appropriate non-strenuous exercise. 2. If the soreness is more intense, and localized swelling and obvious pressure pain, and even subcutaneous bruising, then generally consider muscle strain injury, it is not appropriate to continue to exercise, then you need to pay attention to rest, keep the affected limb elevated braking. Of course, for most people, it is more difficult to distinguish the cause of the soreness, when the soreness appears if the appropriate stretching activities after the local pain increases, it is not recommended to continue to exercise, it is recommended to seek medical attention; if the appropriate stretching activities after the pain does not worsen, or even get better, then you can continue to exercise, but to exercise in moderation.